Stripping mechanism for wire-drawing blocks



1. SUMMER. I

STRIPPING' MECHANISM FOR-WIRE D-HAWING BLOCKS.

APPLICATION FILED DEC-9, 191-9.

Patented May 2,1922.

2 SHEETS-SHEET I.

SDM MER. STRI'PPI-NG MECHANISM FOR WIRE DRAWINGBLOCKS.

APPLICATION FILED DEC.9, 191 9 Pa tented May 2, 1922.

2 SHEETS-SHEET 2.

UNITED srATEs {PATENT OFFICE.

JOHN sommnn, or PEORIA, InLiNoIs, Assn-Non, BY MESNE ASSIGNMENTS, To THE UNION TRUST COMPANY, or CLEVELAND, OHIO, A coaPonATxonoroHIo, AND JOHN A. CHAPMAN, or CHICAGO, ILLINoIsTaUsTEEs.

STRIPPING M-EcHANI's FOR WTR n AWING BLOCKS.

Specification of Letters Patent.

Patented May 2,1922.

Application filed December 9, 1919. Serial No. 343,621.

To all whom it may concern;

Be. it known that I, JOHN SoMMER, a citizen of the United States, residing at Peoria, in the county of Peoria and State of Illinois, have invented new andv useful Improvements in Stripping Mechanism for Wire-Drawing Blocks, of which the following is a specification.

This invention has reference to wire drawing-blocks. v

The invention has for its principal object to provide a stripper for each block, whereby the coil or bundle of drawn Wire may be mechanically remov'edfrom'the block to a reel or other support, and thereby relieve the wire-drawer or attendant of the usual physical strain in performing this work.

The invention has for a further object to provide the stripping mechanismwith means for securing the end of the wire rod, or wire. so that after the drawing operation, and the coiling of the Wire on the block and stripper, the stripping mechanism may' be removed and with it the coil or bundle of draw'n wire, and after the release of the coil the attached end of the wire may also be released.

That the invention may be more fully understood. reference is had to the accompanying drawings forming a part of the description. in which:

Fig. 1 is a side elevation partlyin section showing part of a wire-drawing-bench with one wire-drawing-block thereon and .mechanism being partly in section;

Fig. 4 is a cross-section in plan of a wiredrawing-block as the same would appear if taken on the line 4-4 0f- Fig. 2, and

Fig. 5 is a cross-section in plan of the strippingmechanism as the same would appear if taken on the line 5+5 of Fig. 3, and

Fig. 6 is a perspective view showing the 'drawn from such rods.

rod, or wire gripping means secured to the inner wall of the shell or casing.

Like characters of reference denote corresponding parts throughout the figures.

It has'been and is the general practise when drawing wire from wire rods to provide a wire-drawing-bench having operatively mounted thereon a plurality of spaced rotating wire-drawing-blocks. To reduce a bundle of Wire rods to any given size or sizes of wire. a bundle of rods is placed upon a suitable support, or reel, with the end of the rod passing through suitable dies and attached by some suitable gripping means to the drawing-block. so that when the drawwhich the wire is led through a die and to a drawing-block, in a manner somewhat similar to that just previously stated, for the reduction of the wire rods to wire. This operation is continued as occasion may require to obtain the proper reduction of the wire. whether it be wire rods, or the wire As the coils or bundles of wire are quite heavy it is at once apparent that considerable physical strain is placed upon the attendant and not only is production thereby limited as the operation continues throughout a run, but the physical strain upon the attendant is a drain upon his resources which my invention eliminates.

It is the aim" with the use of my stripping mechanism to relieve the wire-drawer or attendant of the physical strain of removing the drawn wire in coils or bundles from the drawing-blocks, and to provide for mechanically'renioving the same which will speed up product-ion, and the attendant is thereby enabled to operate faster as it facilitates his handling two or more drawing-blocks at a time. This is accomplished by providing a stripping mechanism embodying a means to secure the end of a wire rod, or wire to said stripping mechanism, in place of having the securlng or attaching means for the rod, or

wire, directly on the drawin -block, and,

which fits the drawing-block and around which the wire is coiled as it is drawn on the drawing-block. After the drawing operation has been completed the stripper may be removed, lifting with itthe coil or bundle of drawn-wire, and the same moved to a reel. in the 'use of the intention it is contemplated that any suitable crane may be employed operated pneumatically, or in any other suitable manner under convenient control by the wire-drawer or attendant for the removal of. the stripping mechanism and the coil or bundle of drawn wire.

1 designates the wire-drawing-bench, table or platform. onthe front of which is shown the conventional controlling means 1 for the drawing-blocks. On said bench is rotatably mounted a wire-draWing-block 2. This bench may be of the usual construction and therefore need not be detailed, and the wiredrawing-block being also of the usual construction, except as hereinafter noted, and. the mechanism or means employed to rotate the block as well as the controlling means being also of the usual-and ordinary construction, need not be further detailed. It is of course understood that the drawingbench may be as long as required for the purpose of supporting as many wire-drawing-blocks necessary for any particular mill under consideration, and while I have only shown one wiredrawing-block with my stripping mechanism applied thereto, it will become apparent that such strippingmechanism is applicable and is intended for use on all of theblocks on the bench.

The wire-drawing-block 2 is provided with a plurality of vertically disposed recesses 8 which open out'of the peripheral face of the block and where there are only four recesses. as shown in this instance, each pair of recesses are arranged diametrically opposite each other. It will be observed by reference to Figs. 1 and 2, that such recesses 3 extend vertically in the side of the block and that the base of suchrecesses extend approximately at right-angles to the length thereof I and the recesses are so formed as to receive hooks 4 which conform in shape to the recesses 3, and when located within the recesses the outer faces of the hooks are flush with the peripheral face of the block,

The stripping mechanism to which I have heretofore made reference, includes the plurality of hooks 4, with associated operating means to be described, and a cylindrical shell or casing 5, which, when in operative position, as best seen in Fig. '1, rests upon the block and extendsthereabove forming a continuation of said block. I i

The hooks 4', are preferably bent inwardlyandupwardly as at 6 so as to enter the cylindrical shell or casing 5 and extending up into said shell or casing are pivoted at 7 betweenand to the spaced bars 8 (see F1g, 5)

secured to the wall of the shell or casing.

otherwise if the hooks extend straight up and the shell or casing 5 was of the same diameter of the main body of the drawingblock as the-wire was coiled on the drawingblock it might have a tendency to raise and slip off of the top end of the block; but with the construction shown and a seat being pro 'vided for the coils any suchtendency is overcome. Pivotally connected to each hook 4 within the shell or casing-5 are a pair of links 9 which extend. radially inwardly from y the hooks toward the center of the shell or casing, and at their inner ends these links 9 are pivotally connected to a head 10 connected with a short vertical stem or rod 1.1 which passesup through a cross-head or frame-work 12 secured to the wall of the casing. The arrangement of the head 10 and the links 9, pivotally connected, as shown, with the books 4, provides a toggle connection permitting the hooks 4 to bedra'wn in wardly, or "collapsed, after the stripping mechanism has been removed from thewiredrawing-block, and thereby release the hooks 1 from the coil .or bundle of wire, inthe manner shown in Fig. 3.

At a suitable point the wall 'of the-shell or casing 5 is provided with a hole or perforation 13-through which the end of a wire rod, or wire"-is inserted, from the outside of the shell or casing 5,and the end of the said rodfor wire secured'to a suitable gri ping means, to insure the rod or wire being drawn through the die as the drawing-block is rotated, and the drawn wire wound or coiled on the said drawing-block, andvsaid stripping mechanism. There are various tormsjof grippers'which couldbe employed 115 for thispurpose. While it is practical to employ a stripping mechanism with the gr1pper, for securing the rod, or wire connected with the drawing-block, I prefervto have this gripper associated directly with the stripping mechanism, because then when the stripping mechanism is removed, the coil or bundle of wire may also be removed with it from the drawing-block, "without having first to disconnect the end of the wire from the gripper, which may be disconnected after the stripping mechanism and coil of drawn wine has been removed to the reel, and the wire deposited onthe reel. This gripper is best seen in plan in'Fig. 5, and in perspective '14 secured to the inner wall of the shell or casing 5, coincident with the hole or perforation 15. Pivotally arranged in said block 14 is a gripping member 15, which co-acts with a wall 16 of the block 14 to frictionally impinge the rod, or wire after it has been inserted through the opening or perforation 13 and between the gripper 15 and the 'coacting wall 16. The outer end of the gripping member 15 is normally held raised by a spring 17 and said gripper 15 may be depressed to impinge upon the wire by means of the rod 18 which bears against the outer end of the gripping member 15, and has a threaded relation with a nut 19. The up-- per outer end of said rod 18 passes through a bearing 20 and has the crank 21 connected thereto forming a hand hold, or grip for the operator whereby he may turn the rod 18 causing the gripper 15 to impinge upon the wire, or to release it and permit the spring 17 to remove the gripper from impinging relation' with the wire.

In Fig. l I have shown the stripping mechanism on the block 2 with the hooks 4 lying in the recesses 3 within the block, and with the links 9 and the head 10 in their normal position within the shell or casing 5. I have also shown in this figure a rod, or wire A, in dotted lines, connected with the gripper, not shown, and the coil partially formed on the drawing-block.

To the head or top end of the shell or casing 5. there is secured in a permanent position a bail 22 to receive the hook B which is one of the elements used in connectlon with the crane, or other lifting means, not

shown, by me'ansof which the stripping mechanism together with a drawn coil or bundle of wire is removed from the drawblock and stripping mechanism are wound around the drawing-block and the hooks 4 lying 'within the recesses-of said drawingblock.' As the coil of wire grows .in size, resulting from the drawing operation, the coils extend up and around the hooks of the stripping mechanism, and the body of the shell or casing 5, as shown in dotted lines, in

Figa 2. After thisdraiwing operation the crane or other mechanical means employed for removing the strippingmechanis'm and the drawn coil or bundle of wire is moved to a position-so that the, hook B. is caused to engage the bail 22 (see Figs. 2 and 3) and as the hook B is lifted the drawn coil or bun- ,dle of wire may also be lifted from the drawing-block, as shown in Fig. 2. In this position with the coil or bundle of wire resting upon the hooked ends and bent portions of the hooks 4 will maintain the hooks in their normal retaining position until the hooks are withdrawn, in a manner which I will now explain to permit the removal of the coil or bundle of Wire from the stripping mechanism. .I have previously stated that the coil or bundle of drawn wire is taken fromthe reels are usually locatedon the floor of the mill adjacent to the drawing-bench to receive the coils or bundles of drawn wire. 1

The attendant, when the stripping mechanism with the coil or bundle of wire has been removed from the drawingblock, as shown in Fig. 2, swings the stripping mechanism to a position above the reel C and deposits the same thereabove, as shown in Fig. 3, when the same is lowered until the coneshaped extension D engages with the block 10. A further lowering of the stripping mechanism lifts theblock 10-by reason of its contact with the cone-shaped extension D, which operation, draws in the links 9, collapsing the frame releasing the lower ,ends

of the hooks 4 from the coil or bundle ofwire permitting it to be deposited 'on the base of the reel, as shown in dotted lines in Fig. 3.

When the coil or bundle is so depositedon the reel, then the wire-drawer, or attendant will actuate the rod 18 to release the gripper 15, and permit the end of the wire A to be detached from the stripping mechanism. This operation completed the mechanism of the crane is set into motion which will lift the stripping mechanism off of the reel C permitting the block 10 to drop by weight of gravity and assume the position shown in Fig.1 with the hooks 4 moved outwardly, ready to again become seated in the recesses 3 of the drawing-block 2 upon again lacing the stripping mechanism on said rawing-block.

What I claim is 1. In a device of the character described, in combination, a wire-drawing-olock, and

a stripping mechanism including means for ;removing a coil of drawn wire from. the

block, said coil removing means releasable from the coil by contact with and pressure of a coil receiving means.

2. In adevice of the character described,

incombination, a wire-drawing-block, a stripping mechanism including means for removing a coil. of drawn wire from the block, said coil removing means releasable from the coil by contact with and pressure of a coil receiving means, and a wire gripping means connected with said stripping mechanism.

3. A stripper for a wire drawing block, including a frame, a plurality of coil supporting members pivoted to and depending from said frame, a member movable axially in the frame, and links connecting said supporting members and last mentioned memposition lying next adjacent the casing and protruding from said casing and extending laterally beyond the vertical plane thereof, a member supported to move axially within said casing, and means connecting saidsupporting members with said axially movable member, said axially movable member assuming its lowermost position when said supporting members are lying next adjacent said casing, and movable to its uppermost position to actuate and withdraw said supporting members when brought into contact with and operated by pressure from a coil receiving means.

5. A stripper for a wire drawing block, including a frame, a plurality of pivot al1y suspended coil supporting members, and

means to actuatesaid members to withdraw the same within the frame andrelease the coil, only-.fupon bringing said actuating means into contact with andiresting the same upon a coil receiving means.

6. A stripper for a drawing block, in-

cluding a frame, and collapsible coil supporting members on said frame, said mem-' bers arranged to normally and automatically assume coil receiving position, and automatically releasable from the coil when the frame is deposited on and by pressure from a coil receiving means.

JOHN SOMMER. 

